Molded receptacle.



C. R. ROGERS* MOLDED RBCEPTAGLE.

APPLIGATION FILED JAN.24. 1910.

Patented Aug. 1, 1911.

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CHARLES R. ROGERS, 0F NEW YORK, N. Y., ASSIGNOR TO THE BRUNSWICK-IBALKE- COLLENDER COMPANY OF NEW YORK, OF NEWv YORK, N. Y., A CORPORATION OF NEW YORK.

MOLDED nEcnr'rAcLE.

Application led January 24, 19 10. Serial No. 539,731.

Receptacles, fully .described and represented in the following specification and the accompanying drawings, forming a part of the same.

This invention relates to ertain improvements in molded receptacles.

This invention has for its object to pro-` duce a molded receptacle consisting of a cementitious material which is impervious towater and which has the property of be ing a non-conductor of heat.

A further object of the invention' is to produce a molded receptacle which shall be light, strong, easily made and which has the the cementitious material being strength# ened and its heat conducting quality lessened by fabric located in the walls of the receptacle. y

Referring tothe accompanying drawing, Figure 1 illustrates, in Iperspective, a molded receptacle constructed in accordance with the invention, the wall being broken out to show the construction. Figs. 2 and 3 illustrate modified forms of molded receptacles constructed in accordance with the in- Vention.

In carrying the invention into effect, a cementitious material is employed which is molded while in a plastic state to the form desired. vIn the best constructions` embodying the invention, the receptacle which. it is desired to produce will be molded in a single piece, lso that it will not contain any joints or crevices. The invention has'more particularly in view'the production of refrigerator interiors, and such a receptacle-is par- 'ticularly well adapted for this purpose, be-- cause of the facility with which it may be cleaned and its sanitary properties. x While the cementitious material employed',\as to some aspects of the invention, may be varied, in the best constructions it will comprise oxid of ma esia and. 'chlorid of magnesia. The chlori of magnesia may b mixed withrwater until a density of, say,

.30 Baume 'isreached, and then mixing about six to .seven pints of this mixture with material not used.v

about ve pounds of the oxidy of magnesia. The cementitious mass thus formed, when it hardens, has the property of being substantially waterproofwhich especially adapts it for use as refrigerator interiors, as the walls will not be soaked by the drip and will not absorb any liquids which may be spilled in the refrigerator This material is, further,A

a -non-conductor of heat to a marked degree.

In making small receptacles, such as are used for the interior of smallrefrigerators, the material described maybe used alone,

but, in the best constructions, it will be usedl in connection` with fabric,y which not only strengthens it, but alsoff'to some degree, increases its non-conductingproperty.

W'hile the fabric when employed may be variously disposed in the cementitious material, in the best constructions` embodying the invention, at least two layers of fabric will be used, and, further, vthese'layers will vary in the closeness of their weave or mesh.

Referring to the drawing, and especially to Fig. 1, l indicates an inner layer of the cementitious material referred to comprising the oXid and chlorid of magnesia, this layer being formed by spreading the material on a suitable form or mold. Aroundthis material and before it sets, there is placed -a layer of tine close mesh material 2. Actual practice has shown that cheesecloth can be advantageously used for thispurpose. 'Over this layer of fabric, there is spread a second layer of cementit-ious material, this layer beingmarked 3, and over this layer is `placed a layer of heavy open mesh ,material 4.

"Patented Aug. 1, 1911.'

Actual practice'ha's shown that burlap can l be advantageously used forv this purpose. The layer of fine mesh material enables the open mesh material to be tightly drawn around the interior layer 3 of cementitious material, so that the open meshes are 'completely filled with the-cementitious material,

and at the sa'me time the fine mesh material prevents the open mesh material from being forced clear through 'the cementitious material, as-might happen were the fine mesh It is, of course, desirable that the interior of the7v receptacle present a smooth, finished appearance and the burlap, when this fabric is employed, should be laid on as smoothly and tightly as possible. Over the outer layer of open mesh material there may be placed another layer 5 of cementitious material. If desired, where .a large receptacle is to be made, the layers of burlap interior. Further, the use of the layers of mesh material and1 cementitious material, it

fabric referred to enables the construction of the receptacle to be proceeded with Very rapidly and by comparatively' unskilled labor. 'The use of the inner layer of fine mesh material makes it possible, as has been pointed out, to place the open-mesh material in position very rapidly a'ndwithout exercising particular care.

If desired, a receptacle constructed in ac cordance with the invention may be multiplewalled with an air space between contiguous Walls. Fig. 2 illustrates a construction which may be adopted where this character of re ceptacle is desired. In the construction shown in this ligure, after the layer 5 of cementitious material is put in place, 'spacing strips 6 of wood or other suitable ma? terial are laid against it'and a layer of open mesh material, such as the burlap referred to, is stretched around the strips. A layer of' cementitious material, as 7., may then bel applied to the burlap. In the best constructions of this character, the wall thus formed will be built up of alternatelaye'rs of open being unnecessary to use the linemesh material,because it makes no difference whether they cementitious material is forced through the meshes of the fabric or not. The spaces between the `wallsl formed in the vmanner described may be left open, as indicated in Fig. 2, or they may be filled with insulating 4ing from the invention.

In molding the receptacles, themold may be so constructed as to form a ange 8 on the receptacle to facilitate its adjustment to the outer casingwith which itis tb be used.

When the cementitious material is composed of oxid of magnesia and chlorid of tmagnesia, the proportions may be Varied somewhat from those stated without departing from the invention, and it is also obvious that changes may be made in the manner of constructing the receptacle without departi The Ainvention is not, therefore, to be confined to the specific ,material orto the particular constructions 1. A molded receptacle consisting'of in side and outside layers of cementitious material, a layer of line mesh fabric next the inside layer and a layer ofj coarse open mesh" fabric, said fabric layers inclosing between them a layer of the cementitious material.

2. Amultiple-Wall molded receptacle, each Wall being formed of la rs of cementitious material and fabric in-alternate layers, the walls being spaced from each other, and the surface of the inner wall being unbroken.

3. Amultiple-wall molded receptacle, each Wall being formed of layersof cementitious material and fabric in 'alternate layers, the walls being spaced from each other, the surface of the inner wall being unbroken, and the spaces being filled with-insulating ma* terial..

In testimony whereof, I have hereunto t my hand, in the presence of two subscribing witnesses.

CHARLES R. ROGERS.

Witnesses:

A. WHITE, J. A. GRAVES. 

